Home / 75,901.12-113,838.40-20,484.16

Finding the Fourth Proportional to 75,901.12, 113,838.40 and 20,484.16

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Solution

The fourth proportional to 75,901.12, 113,838.40 and 20,484.16 is: 30,722.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,901.12 : 113,838.40 = 20,484.16 : x
  2. Step 2: Convert to fraction form
    75,901.12/113,838.40 = 20,484.16/x
  3. Step 3: Cross multiply
    75,901.12x = 113,838.40 × 20,484.16
  4. Step 4: Simplify right side
    75,901.12x = 2,331,883,999.74
  5. Step 5: Solve for x
    x = 2,331,883,999.74/75,901.12
  6. Step 6: Final answer
    x = 30,722.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.